Mcp
Let your coding agent validate signup emails and run SMTP checks without leaving Claude Code or Cursor.
Overview
BounceProtect MCP is a Build-phase MCP server that lets Claude Desktop, Cursor, and Claude Code agents validate email addresses and run SMTP verification via API.
What is this MCP server?
- Syntax and mailbox checks via MCP from Claude Desktop, Cursor, and Claude Code
- SMTP-level verification through npm package @bounceprotect/mcp (stdio transport)
- Requires YOUR_API_KEY in the MCP package environment
- Reduces fake signups and bounced lifecycle email on solo-built SaaS and storefronts
- Version 1.0.6 per server manifest
- Server version 1.0.6
- npm identifier @bounceprotect/mcp with stdio transport
- Source repository: github.com/bounceprotect/bounceprotect-mcp
What problem does it solve?
Solo builders waste time fixing bounced signups and support tickets because fake or mistyped emails slip through during rapid form and auth work.
Who is it for?
Indie SaaS and ecommerce builders who want agent-driven email checks during signup, waitlist, and import workflows.
Skip if: Teams that need bulk list hygiene, deliverability warmup, or a full marketing automation platform instead of point-in-time validation.
What do I get? / Deliverables
After you register the server with YOUR_API_KEY, your agent can flag invalid or risky addresses before they are stored or emailed.
- Agent-callable email validation and SMTP verification results
- Fewer invalid contacts committed to signup or import tables
- Faster review of address quality during integration work
Recommended MCP Servers
Journey fit
MCP servers land on the build/integrations shelf because they extend the agent during product work; email checks also support validate and grow flows. Email validation is wired in as an agent integration while you build forms, auth, and lifecycle messaging.
How it compares
MCP email-validation integration, not a bulk ESP or CRM skill.
Common Questions / FAQ
Who is BounceProtect MCP for?
Solo and indie builders using Claude Code, Cursor, or Claude Desktop who need SMTP-backed email checks inside the agent workflow.
When should I use BounceProtect MCP?
Use it while building or reviewing signup, waitlist, invite, or import flows whenever address quality affects deliverability or fraud risk.
How do I add BounceProtect MCP to my agent?
Install the @bounceprotect/mcp npm MCP package with stdio transport, set YOUR_API_KEY in environmentVariables, and register the server in your MCP client config.